Tuesday, July 22, 2014

Nominal choropleth map - UK election results





 

A choropleth map displays areal data, using colors or patterns to highlight differences between areas or characteristics.  This particular map is a nominal choropleth, which means that the data in question cannot be ranked in any particular order – in this case, the data are election results in the UK in 2010.  The colors represent different parties.  There is also a pie chart of the percentages of votes these parties received, which is a helpful alternative visual of the election results.  The Conservative Party (in blue) had the highest percentage of votes with 36%, and this map shows us that most of these votes came from mostly the southern and central parts of the UK.  Maps like these are helpful in determining the political leanings of a certain geographical area, but they may not always be great predictors of outcomes (keeping in mind that this map is of election results, not predictions).

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